An x-ray diffraction sample holder for ophthalmic implant crystal form analysis

Abstract

The application discloses an X-ray diffraction sample holder for ophthalmic implant crystal form structure analysis and belongs to the technical field of X-ray diffraction analysis sample holders, which comprises an X-ray diffractometer, a sample holder rotatably connected to the inside of the X-ray diffractometer, a rotating unit rotatably connected to the inside of the X-ray diffractometer and connected to the center of the sample holder, a lifting frame slidably connected to the inside of the X-ray diffractometer, and a grinding unit, a leveling unit and a cleaning unit respectively installed at three ends of the lifting frame in a T-shaped structure. When sample powder in a placing groove is rotated to the next station, the through hole is completely communicated with the bottom of the placing groove under the magnetic action of an electromagnet and a magnetic part, at which time the ophthalmic implant sample powder in the placing groove is pushed into a sample groove in a sample seat under the action of a conical feeding frame, and full automation of the ophthalmic implant sample from grinding, positioning to feeding is realized.

Description

Technical Field

[0001] This invention relates to the field of X-ray diffraction analysis sample holder technology, specifically to an X-ray diffraction sample holder for analyzing the crystal structure of ophthalmic implants. Background Technology

[0002] An X-ray diffractometer is a scientific instrument that analyzes the microstructure of materials by utilizing the diffraction phenomenon produced by the interaction of X-rays with crystalline materials. When a beam of X-rays shines on a sample, the regularly arranged atoms in the crystal cause the X-rays to diffract. By recording the direction and intensity of the diffracted rays with a detector, information such as the atomic arrangement, lattice parameters, phase composition, and even stress state of the crystal can be deduced. It is an indispensable analytical tool in materials science, chemistry, physics, and geology, and is widely used in research such as crystal structure analysis, phase identification, and residual stress measurement.

[0003] Addressing the challenges of small sample sizes, irregular shapes, and precise positioning required for ophthalmic implants (such as sustained-release drug microparticles and intraocular lenses), specialized X-ray diffraction sample holders for ophthalmic implants are typically equipped with low-background-noise grooves or capillaries to effectively fix minute samples and prevent scattering. Simultaneously, they integrate a high-precision three-dimensional adjustable platform and a microscopic aiming system to ensure that the X-ray beam accurately irradiates specific micro-areas of the implant, thereby obtaining high signal-to-noise ratio diffraction patterns non-destructively and efficiently.

[0004] In existing technologies, the sample preparation process for X-ray diffraction sample holders specifically designed for ophthalmic implants relies entirely on manual filling of powder into the placement slots. This manual operation method has significant limitations: firstly, it is difficult to ensure the flatness of the powder surface after each filling, affecting the consistency of experimental conditions; secondly, the operation process is prone to introducing contaminants, interfering with the detection results. Therefore, there is an urgent need to develop a novel X-ray diffraction sample holder specifically for the analysis of the crystal structure of ophthalmic implants to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide an X-ray diffraction sample holder for analyzing the crystal structure of ophthalmic implants, thereby solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An X-ray diffraction sample holder for analyzing the crystal structure of ophthalmic implants, comprising:

[0008] The X-ray diffractometer has a sample holder internally connected to it in a cross shape. Each of the four ends of the sample holder has a placement slot. A sample holder is slidably connected to the lower side of the sample holder. The sample holder has a sample slot and the placement slot are connected.

[0009] The rotating unit is rotatably connected inside the X-ray diffractometer and to the center of the sample holder, and is used to drive the sample holder to rotate.

[0010] The X-ray diffractometer has an internal sliding connection with a lifting frame. The lifting frame has a T-shaped structure, and its three ends are respectively equipped with a grinding unit, a smoothing unit, and a cleaning unit. When the lifting frame descends, the grinding unit, smoothing unit, and cleaning unit can respectively grind, feed, and clean the ophthalmic implant samples in the three sets of sample slots on the sample holder.

[0011] As a preferred embodiment of the present invention, the rotating unit includes: a support fixed to the inner wall of an X-ray diffractometer, with a driving component mounted on its surface; and a driving shaft rotatably connected inside the support, with one end connected to the output end of the driving component and the other end connected to the center of the sample holder.

[0012] As a preferred embodiment of the present invention, a cylinder is installed on the inner top of the X-ray diffractometer, and a lifting frame is connected to the output end of the cylinder; an observation window is installed on the side of the X-ray diffractometer, two sets of sliding doors are slidably connected to the surface of the X-ray diffractometer, and a control switch is installed on the lower side of the X-ray diffractometer.

[0013] As a preferred embodiment of the present invention, the grinding unit includes: a grinding motor, which is installed on the upper side of one end of the lifting frame; and an inclined frame, one end of which is fixed to the output end of the grinding motor, and the other end of which is fixed with a grinding rod.

[0014] As a preferred embodiment of the present invention, the smoothing unit includes: an extension frame connected to the other end of the lifting frame, with a conical feeding frame fixed to the end of the lifting frame; a rotating shaft rotatably connected to the extension frame via a torsion spring, with a rotating frame fixed to the surface of the rotating shaft, and an inclined surface formed on the side of the rotating frame; a limiting frame fixed to the side of the extension frame and engaging with the side of the rotating frame; an extension seat connected to the end of the sample holder, with a sliding rod slidably connected inside, and a smoothing seat fixed to one end of the sliding rod; a C-shaped frame fixed to the other end of the sliding rod, with an elastic element connecting the C-shaped frame and the extension seat; and a rotating rod rotatably connected to the upper end of the C-shaped frame and intermittently slidingly connected to the inclined surface.

[0015] As a preferred embodiment of the present invention, the extension seat is internally slidably connected to an avoidance unit, which is used to seal and open the bottom of the placement groove. The avoidance unit includes: an avoidance groove, which is formed inside the sample holder and a sample holder is placed at the bottom; a sliding frame, which is slidably connected to the upper part of the avoidance groove and connected to the avoidance groove through an elastic element, and the upper and lower surfaces of the smoothing seat are respectively slidably connected to the lower side of the sliding frame and the upper side of the sample holder; a through hole, which is formed on the sliding frame and intermittently communicates with the avoidance groove; a magnetic element, which is fixed to the end of the sliding frame away from the elastic element; and an electromagnet, which is installed on the inner wall of the X-ray diffractometer and intermittently connected to the magnetic element.

[0016] As a preferred embodiment of the present invention, the cleaning unit includes: a fixed frame connected to the inner wall of an X-ray diffractometer, with a cleaning cylinder installed at one end; a rotating rod slidably connected to the inside of the cleaning cylinder, with an arc-shaped groove on its surface, and the upper end of the rotating rod connected to the other end of a lifting frame; a cleaning roller fixed to the lower end of the rotating rod; and a vertical frame connected to the upper side of the fixed frame, with a sliding column fixed on the vertical frame, the end of which is slidably connected to the inside of the arc-shaped groove.

[0017] As a preferred embodiment of the present invention, the cleaning roller is provided with a dust suction unit, which is used to adsorb dust in the placement groove. The dust suction unit includes: a piston fixed to the surface of the rotating rod and slidably connected to the inner wall of the cleaning cylinder; a compression spring connected between the side of the piston and the inner wall of the cleaning cylinder; an air passage opened inside the rotating rod and the cleaning roller; a first one-way valve opened on the rotating rod and connected to the end of the air passage; and an air pipe installed on the cleaning cylinder through a second one-way valve.

[0018] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: In the present invention, when the sample holder rotates the sample inside the placement slot by 90 degrees and is located below the grinding rod, the ophthalmic implant sample will be ground under the action of the grinding rod. When the ground sample powder in the placement slot rotates to the next station, under the magnetic action of the electromagnet and magnetic components, the through hole will be completely connected to the bottom of the placement slot. At this time, the ophthalmic implant sample powder in the placement slot will be pushed into the sample slot in the sample holder under the action of the conical feeder. This realizes the full automation of the sample from grinding and positioning to loading, without manual intervention. It solves the technical pain points of difficult loading, low efficiency and easy contamination of trace and precious ophthalmic implant samples in crystal structure analysis, and provides a strong guarantee for obtaining accurate and reliable crystal structure data.

[0019] In this invention, a smoothing holder can smooth the powder from ophthalmic implant samples within the sample slots on the sample holder, facilitating subsequent crystal structure analysis using X-ray diffraction. The bottom contour of the smoothing holder precisely matches the shape of the sample slot opening on the sample holder, ensuring that excess powder is scraped off without leaving grooves or causing powder stratification on the sample surface. By automating the smoothing of the sample powder within the sample slots, human error is eliminated, ensuring consistent powder surface flatness for each sample preparation and effectively avoiding contamination or sample impact that may be introduced by manual operation.

[0020] In this invention, the rotating rod drives the cleaning roller to automatically descend and rotate. The flexible cleaning material attached to the surface of the cleaning roller effectively removes residual powder while avoiding wear on the sample holder. Simultaneously, the airflow, passing through the air passage, carries sample dust from the placement slot into the cleaning cylinder, improving the cleaning effect on residual samples in the placement slot. Through mechanical cleaning by the cleaning roller and pneumatic adsorption, sample residue in the placement slot can be thoroughly removed, reducing the risk of cross-contamination and ensuring the cleanliness of the sample holder for each test, thus providing a reliable guarantee for efficient and continuous sample testing.

[0021] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an X-ray diffraction sample holder for analyzing the crystal structure of ophthalmic implants, provided as an embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the internal structure of an X-ray diffraction sample holder for analyzing the crystal structure of ophthalmic implants, provided by the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of an X-ray diffraction sample holder for analyzing the crystal structure of ophthalmic implants, provided by the present invention.

[0025] Figure 4 This is a schematic diagram of the grinding unit of an X-ray diffraction sample holder for analyzing the crystal structure of ophthalmic implants, provided by the present invention.

[0026] Figure 5 This is a schematic diagram of the structure of an X-ray diffraction sample holder for analyzing the crystal structure of ophthalmic implants, provided by the present invention.

[0027] Figure 6 This is a schematic diagram of the smoothing unit of an X-ray diffraction sample holder for analyzing the crystal structure of ophthalmic implants, provided by the present invention.

[0028] Figure 7 This is a schematic diagram of the flattening seat of an X-ray diffraction sample holder for analyzing the crystal structure of ophthalmic implants, provided by the present invention.

[0029] Figure 8 This is a cross-sectional view of the cleaning unit of an X-ray diffraction sample holder for analyzing the crystal structure of ophthalmic implants, as provided by the present invention.

[0030] Reference numerals: 1. X-ray diffractometer; 11. Observation window; 12. Sliding door; 13. Control switch; 14. Sample holder; 141. Placement slot; 15. Sample holder; 16. Lifting frame; 161. Cylinder; 2. Rotation unit; 21. Support; 22. Drive component; 23. Drive shaft; 3. Grinding unit; 31. Grinding motor; 32. Tilting frame; 33. Grinding rod; 4. Smoothing unit; 41. Extension frame; 42. Rotating shaft; 43. Rotating frame; 431. Tilting surface; 44. Limiting frame; 45. Conical feeding frame; 46. Extension seat; 47. 471. Slide bar; 48. Smoothing seat; 481. C-shaped frame; 49. Rotating rod; 5. Elastic element; 5. Avoidance unit; 51. Avoidance groove; 52. Sliding frame; 521. Through hole; 53. Elastic element; 54. Magnetic element; 55. Electromagnet; 6. Cleaning unit; 61. Fixing frame; 62. Cleaning cylinder; 63. Rotating rod; 631. Arc groove; 64. Cleaning roller; 65. Vertical frame; 66. Sliding column; 7. Vacuuming unit; 71. Piston; 72. Compression spring; 73. First one-way valve; 74. Air passage; 75. Second one-way valve; 76. Air pipe. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0032] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0033] See Figures 1 to 8 An X-ray diffraction sample holder for analyzing the crystal structure of ophthalmic implants, comprising:

[0034] X-ray diffractometer 1, the X-ray diffractometer 1 has a sample holder 14 rotatably connected inside, the sample holder 14 has a cross structure, and each of the four ends of the sample holder 14 is provided with a placement groove 141. The sample holder 14 is slidably connected to the lower side of the sample holder 14, and a sample groove is opened on the sample holder 15. The sample groove and the placement groove 141 are connected.

[0035] Rotating unit 2 is rotatably connected inside the X-ray diffractometer 1 and centrally connected to the sample holder 14, and is used to drive the sample holder 14 to rotate.

[0036] The X-ray diffractometer 1 has a sliding connection to a lifting frame 16, which has a T-shaped structure. The three ends of the lifting frame 16 are respectively equipped with a grinding unit 3, a smoothing unit 4, and a cleaning unit 6. When the lifting frame 16 descends, the grinding unit 3, the smoothing unit 4, and the cleaning unit 6 can grind, feed, and clean the ophthalmic implant samples in the three sets of sample slots on the sample holder 14, respectively.

[0037] In one embodiment of the present invention, such as Figure 2 and Figure 3 As shown, the rotating unit 2 includes:

[0038] The bracket 21 is fixed to the inner wall of the X-ray diffractometer 1, and a driving component 22 is mounted on its surface. The driving component 22 is a servo motor.

[0039] The drive shaft 23 is rotatably connected inside the bracket 21, with one end connected to the output end of the drive component 22 and the other end connected to the center of the sample holder 14.

[0040] In this embodiment, an observation window 11 is installed on the side of the X-ray diffractometer 1, two sets of sliding doors 12 are slidably connected to the surface of the X-ray diffractometer 1, and a control switch 13 is installed on the lower side of the X-ray diffractometer 1. The sample holder 14 has a cross structure, and each of the four ends of the sample holder 14 is provided with a placement slot 141.

[0041] When analyzing the crystal structure of ophthalmic implants using X-ray diffractometer 1, the two sets of sliding doors 12 are first opened. The drive unit 22 is activated via control switch 13, and its output drives the sample holder 14 to rotate via drive shaft 23. This, in turn, causes the four placement slots 141 at its ends to rotate. When the placement slots 141 rotate to the position indicated by the sliding doors 12, a small amount of ophthalmic implant is placed inside, and a cleaned sample holder 15 is placed inside the clearance slot 51. The drive unit 22 is then activated again, causing the sample holder 14 to rotate the ophthalmic implant inside the placement slots 141 to the grinding station for grinding.

[0042] In one embodiment of the present invention, such as Figure 3 and Figure 4 As shown, the grinding unit 3 includes:

[0043] The grinding motor 31 is installed on the upper side of one end of the lifting frame 16;

[0044] The tilting frame 32 is fixed at one end to the output end of the grinding motor 31, and the other end is fixed with a grinding rod 33.

[0045] In this embodiment, a cylinder 161 is installed on the inner side of the top of the X-ray diffractometer 1, and the lifting frame 16 is connected to the output end of the cylinder 161.

[0046] When the sample holder 14 rotates the ophthalmic implant inside the placement slot 141 90 degrees and is positioned below the grinding rod 33, the cylinder 161 is activated via the control switch 13. This causes the output of the cylinder 161 to lower the lifting frame 16, which in turn lowers the tilting frame 32 and the grinding rod 33 as a whole. The grinding motor 31 is then activated, and its output drives the grinding rod 33 to rotate via the tilting frame 32 until the grinding rod 33 contacts the ophthalmic implant inside the placement slot 141, whereby the ophthalmic implant is ground by the grinding rod 33.

[0047] In one embodiment of the present invention, such as Figure 7 As shown, an avoidance unit 5 is slidably connected inside the extension seat 46. The avoidance unit 5 is used to seal and open the bottom of the placement groove 141. The avoidance unit 5 includes:

[0048] The clearance groove 51 is formed inside the sample holder 14, and the sample holder 15 is placed at the bottom.

[0049] The sliding frame 52 is slidably connected to the upper part of the clearance groove 51 and is connected to the clearance groove 51 by the elastic element 53. The upper and lower surfaces of the smoothing seat 471 are slidably connected to the lower side of the sliding frame 52 and the upper side of the sample seat 15, respectively.

[0050] A through hole 521 is formed on the sliding frame 52 and is intermittently connected to the clearance groove 51;

[0051] Magnetic component 54 is fixed to the end of sliding frame 52 away from elastic element 53;

[0052] Electromagnet 55 is installed on the inner wall of X-ray diffractometer 1 and is intermittently connected to magnetic component 54.

[0053] In this embodiment, after the ophthalmic implant in the placement slot 141 has been ground, the cylinder 161 is activated, causing the lifting frame 16 to rise as a whole. The drive unit 22 is activated again, causing the sample holder 14 to rotate the four sets of placement slots 141 by 90 degrees again. At this time, the ophthalmic implant in the placement slot 141 will rotate to the next station.

[0054] When the sample holder 14 rotates, it drives the magnetic component 54 to rotate synchronously via the sliding frame 52. When the ophthalmic implant in the placement slot 141 rotates to the next station, the sample holder 14 drives the magnetic component 54 to rotate to the side of the electromagnet 55 via the sliding frame 52. Under the magnetic action of the electromagnet 55 and the magnetic component 54, the sliding frame 52 slides outward within the sample holder 14. When the sliding frame 52 slides, it stretches the elastic component 53 and drives the through hole 521 to slide synchronously, so that the through hole 521 and the bottom of the placement slot 141 are completely connected. This facilitates the grinding of the ophthalmic implant through the bottom of the placement slot 141 and the through hole 521 into the sample slot inside the sample holder 15, thus completing the automatic feeding of the ophthalmic implant.

[0055] In one embodiment of the present invention, such as Figure 4 and Figure 5 As shown, the smoothing unit 4 includes:

[0056] An extension frame 41 is connected to the other end of the lifting frame 16, and a conical feeding frame 45 is fixed to this end of the lifting frame 16.

[0057] The rotating shaft 42 is rotatably connected to the extension frame 41 via a torsion spring. The rotating frame 43 is fixed on the surface of the rotating shaft 42, and the side of the rotating frame 43 is provided with an inclined surface 431.

[0058] The limiting bracket 44 is fixed to the side of the extension bracket 41 and engages with the side of the rotating bracket 43.

[0059] An extension seat 46 is connected to the end of the sample holder 14, and a slide rod 47 is slidably connected inside. A smoothing seat 471 is fixed to one end of the slide rod 47.

[0060] The bracket 48 is fixed to the other end of the slide bar 47. The bracket 48 and the extension seat 46 are connected by an elastic element 49. The elastic element 53 and the elastic element 49 are specifically springs.

[0061] Rotating rod 481 is rotatably connected to the upper end of the U-shaped frame 48 and intermittently slidably connected to the inclined surface 431.

[0062] In this embodiment, when the bottom of the through hole 521 and the placement groove 141 are fully connected, the cylinder 161 is activated, causing the lifting frame 16 to descend again. This causes the lifting frame 16 to drive the conical feeding frame 45 and the extension frame 41 to descend as a whole. When the conical feeding frame 45 descends into the interior of the placement groove 141, the ophthalmic implant sample powder in the placement groove 141 is pushed into the sample slot in the sample holder 15 through the through hole 521 under the action of the conical feeding frame 45. This achieves full automation of the sample from grinding and positioning to loading, without the need for manual intervention. It is suitable for crystal form screening or quality control processes that require the analysis of a large number of ophthalmic implant samples, and significantly improves the detection efficiency.

[0063] During the above process, when the extension frame 41 descends, it will drive the rotating frame 43 to descend synchronously through the rotating shaft 42 until the rotating frame 43 descends to contact the rotating rod 481. At this time, the rotating frame 43 will rotate upward on the extension frame 41 under the action of the rotating rod 481. When the rotating frame 43 rotates, it will compress the torsion spring until the side of the rotating frame 43 is completely separated from the rotating rod 481. After that, the rotating frame 43 will drive the rotating shaft 42 to rotate in the opposite direction on the extension frame 41 under the action of the torsion spring until the rotating frame 43 rotates to the horizontal direction again.

[0064] When the conical feeder 45 pushes the ophthalmic implant sample powder in the placement slot 141 into the sample holder 15, the cylinder 161 is activated, causing the lifting frame 16 to rise as a whole. When the extension frame 41 drives the rotating frame 43 to rise and contact the rotating rod 481, the inclined surface 431 of the rotating frame 43 will first contact the rotating rod 481. Under the action of the rotating rod 481 and the inclined surface 431, the convex frame 48 will push the slide rod 47 to slide inward inside the extension holder 46. When the convex frame 48 slides, it will compress the elastic element 49, and when the slide rod 47 slides, it will drive the smoothing seat 471 at its end to slide synchronously. Thus, the smoothing seat 471 can smooth the ophthalmic implant sample powder in the sample slot on the sample holder 15, which is convenient for the X-ray diffractometer 1 to perform the next crystal structure analysis. The bottom contour of the leveling seat 471 precisely matches the shape of the sample slot opening on the sample holder 15, ensuring that excess powder can be scraped off without leaving grooves or causing powder stratification on the sample surface. By automatically leveling the sample powder in the sample slot using the leveling seat 471, the manual error due to human variation is eliminated, ensuring the consistency of powder surface flatness for each sample preparation and effectively avoiding contamination or impact on the sample that may be introduced by manual operation.

[0065] After the sample powder is loaded into the sample slot, the drive unit 22 is activated, causing the sample holder 14 to rotate again. When the sample holder 14 rotates the magnetic component 54 through the sliding frame 52 until it is disengaged from the electromagnet 55, the magnetic force disappears. At this time, under the elastic force of the elastic material 53, the sliding frame 52 will reset to its initial position in the clearance groove 51. Thus, the through hole 521 on the sliding frame 52 is misaligned with the bottom of the placement groove 141, and the channel is closed, preparing to receive the next sample. This solves the technical pain points of difficult loading, low efficiency and easy contamination of trace and precious ophthalmic implant samples in crystal structure analysis, and provides a strong guarantee for obtaining accurate and reliable crystal structure data.

[0066] In one embodiment of the present invention, such as Figure 8 As shown, the cleaning unit 6 includes:

[0067] The mounting bracket 61 is connected to the inner wall of the X-ray diffractometer 1, and a cleaning tube 62 is installed at its end;

[0068] The rotating rod 63 is slidably connected inside the cleaning cylinder 62. The surface of the rotating rod 63 is provided with an arc-shaped groove 631. The upper end of the rotating rod 63 is connected to the other end of the lifting frame 16.

[0069] The cleaning roller 64 is fixed to the lower end of the rotating rod 63;

[0070] A vertical frame 65 is connected to the upper side of a fixed frame 61. A sliding column 66 is fixed on the vertical frame 65, and the end of the sliding column 66 is slidably connected inside an arc-shaped groove 631.

[0071] In this embodiment, after the sample powder is loaded into the sample cell and the sample holder 14 rotates 90 degrees again, similarly, after the lifting frame 16 rises, the cylinder 161 is activated again, causing the lifting frame 16 to descend. When the lifting frame 16 descends, it will drive the rotating rod 63 to descend inside the cleaning cylinder 62. When the rotating rod 63 descends, it will drive the arc-shaped groove 631 on its surface to descend synchronously. Since the end of the sliding column 66 is slidably connected inside the arc-shaped groove 631, under the action of the arc-shaped groove 631 and the sliding column 66, the rotating rod 63 will also rotate inside the cleaning cylinder 62 when it descends. Then, the rotating rod 63 will drive the cleaning roller 64 at its end to descend and rotate until the cleaning roller 64 slides into the placement groove 141. When the cleaning roller 64 rotates in the placement groove 141, the flexible cleaning material attached to its surface can effectively remove residual powder and avoid wear on the sample cell. After cleaning, the lifting frame 16 drives the cleaning roller 64 to rise and reset. During the rising process, the rotating rod 63 rotates in opposite directions through the cooperation of the arc groove 631 and the sliding column 66, causing the cleaning roller 64 to rise synchronously and return to the initial angle, preparing for the next cleaning cycle. This automatic cleaning mechanism reduces the risk of cross-contamination and ensures the cleanliness of the sample tank during each test, thereby maintaining high standards of testing conditions and data accuracy in efficient continuous testing.

[0072] In one embodiment of the present invention, such as Figure 8 As shown, a dust suction unit 7 is provided on the cleaning roller 64. The dust suction unit 7 is used to absorb dust in the placement groove 141. The dust suction unit 7 includes:

[0073] Piston 71 is fixed to the surface of rotating rod 63 and slidably connected to the inner wall of cleaning cylinder 62;

[0074] Compression spring 72 is connected between the side of piston 71 and the inner wall of cleaning cylinder 62;

[0075] Air passage 74 is formed inside rotating rod 63 and cleaning roller 64;

[0076] The first one-way valve 73 is provided on the rotating rod 63, and the first one-way valve 73 is connected to the end of the air passage 74;

[0077] The air tube 76 is installed on the cleaning cylinder 62 via the second one-way valve 75.

[0078] In this embodiment, when the rotating rod 63 descends, it will drive the piston 71 to descend inside the cleaning cylinder 62. The piston 71 will compress the compression spring 72. As the piston 71 descends, the space formed by the piston 71 and the inside of the cleaning cylinder 62 will gradually decrease. The gas in this space will be discharged from the air pipe 76 through the second one-way valve 75.

[0079] As the rotating rod 63 rises, it drives the piston 71 to rise synchronously inside the cleaning cylinder 62. At this time, the space formed by the piston 71 and the inside of the cleaning cylinder 62 gradually increases, allowing external gas to enter this space through the air passage 74 and the first one-way valve 73. When the airflow passes through the air passage 74, it carries sample dust from the placement slot 141 into the cleaning cylinder 62, improving the cleaning effect on residual samples in the placement slot 141. Through mechanical cleaning by the cleaning roller 64 and pneumatic adsorption, sample residue in the placement slot 141 can be thoroughly removed, reducing the risk of cross-contamination and ensuring the cleanliness of the sample slot during each test, thus providing a reliable guarantee for efficient and continuous sample testing.

[0080] The working principle of this invention is as follows: When analyzing the crystal structure of ophthalmic implants using an X-ray diffractometer 1, first open the two sets of sliding doors 12. Place a small amount of ophthalmic implant into the placement slot 141, and simultaneously place the cleaned sample holder 15 into the clearance slot 51.

[0081] When the sample holder 14 rotates the ophthalmic implant sample inside the placement slot 141 by 90 degrees and is located below the grinding rod 33, the output end of the grinding motor 31 will drive the grinding rod 33 to rotate through the tilting frame 32. The grinding rod 33 contacts the ophthalmic implant in the placement slot 141, so that the ophthalmic implant sample will be ground under the action of the grinding rod 33.

[0082] When the ophthalmic implant in the placement slot 141 rotates to the next station, the sample holder 14 will drive the magnetic component 54 to rotate to the side of the electromagnet 55 through the sliding frame 52. Under the magnetic action of the electromagnet 55 and the magnetic component 54, the sliding frame 52 will slide outward in the sample holder 14. When the sliding frame 52 slides, it will stretch the elastic component 53, and the sliding frame 52 will drive the through hole 521 to slide synchronously. When the through hole 521 and the bottom of the placement slot 141 are fully connected, the ophthalmic implant sample powder in the placement slot 141 will be pushed into the sample slot in the sample holder 15 through the through hole 521 under the action of the conical feeder 45, realizing the full automation of the sample from grinding, positioning to loading.

[0083] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0084] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An X-ray diffraction sample holder for ophthalmic implant crystal form analysis, characterized by, The utility model relates to an X -ray diffractometer, X -ray diffractometer (1) is connected with the sample holder (14) inside rotation, and the sample holder (14) is cross structure, and the four groups end of sample holder (14) are equipped with the placement slot (141), and the lower side of sample holder (14) is connected with the sample holder (15) of sliding, and the sample holder (15) is opened with the sample slot, and the sample slot and placement slot (141) are communicated; Rotary unit (2) is rotatably connected in the inside of X -ray diffractometer (1), and is connected with the center of sample holder (14), is used for driving sample holder (14) to rotate; The inside of X -ray diffractometer (1) is connected with the lifting frame (16) of sliding, and the lifting frame (16) is T-shaped structure, and three ends are installed with grinding unit (3), the smoothing unit (4) and cleaning unit (6) respectively;When the lifting frame (16) is lowered, grinding unit (3), smoothing unit (4) and cleaning unit (6) can respectively carry out grinding, feeding and cleaning treatment to the ophthalmic implant sample in three groups of sample slots on the sample holder (14), wherein the smoothing unit (4) includes: extension frame (41) is connected on the other end of lifting frame (16), and the end of lifting frame (16) is fixed with conical feeding frame (45);Pivot (42) is rotatably connected on extension frame (41) through torsion spring, and the surface of pivot (42) is fixed with rotary frame (43), and the side surface of rotary frame (43) is opened with inclined surface (431);Limiting frame (44) is fixed on the side surface of extension frame (41), and is engaged with the side surface of rotary frame (43);Extension base (46) is connected on the end of sample holder (14), and the inside is connected with slide rod (47) of sliding, and one end of slide rod (47) is fixed with smoothing base (471);L-shaped frame (48) is fixed on the other end of slide rod (47), and L-shaped frame (48) is connected through elastic element (49) between extension base (46), and the upper end of L-shaped frame (48) is rotatably connected with inclined surface (431); The inside of extension base (46) is connected with avoiding unit (5) of sliding, and avoiding unit (5) is used for sealing and opening the bottom of placement slot (141), and the avoiding unit (5) includes: avoiding slot (51) is opened in the inside of sample holder (14), and the lower part is placed with sample holder (15);Slide frame (52) is slidably connected on the upper part of avoiding slot (51), and is connected with avoiding slot (51) through elastic object (53), and the upper and lower surfaces of smoothing base (471) are slidably connected on the lower side of slide frame (52) and the upper side of sample holder (15) respectively;Through -hole (521) is opened in slide frame (52), and is intermittently communicated with avoiding slot (51);Magnetic element (54) is fixed on the end of slide frame (52) away from elastic object (53);Electromagnet (55) is installed on the inner wall of X -ray diffractometer (1), and is intermittently connected with magnetic element (54). The rotary unit (2) includes:

2. The X-ray diffraction sample holder for ophthalmic implant crystallography analysis of claim 1, wherein, Support (21) is fixed on the inner wall of X -ray diffractometer (1), and the surface is installed with driving element (22); ​ A driving shaft (23) is rotatably connected to the inside of the support (21), one end of which is connected to the output end of the driving member (22), and the other end is connected to the center of the sample holder (14).

3. The X-ray diffraction sample holder for ophthalmic implant crystallography analysis of claim 1, wherein, A cylinder (161) is mounted on the inside of the top of the X-ray diffractometer (1), and a lifting frame (16) is connected to the output end of the cylinder (161); an observation window (11) is mounted on the side of the X-ray diffractometer (1), and two groups of sliding doors (12) are slidingly connected to the surface of the X-ray diffractometer (1); a control switch (13) is mounted on the lower side of the X-ray diffractometer (1).

4. The X-ray diffraction sample holder for ophthalmic implant crystallography analysis of claim 2, wherein, The grinding unit (3) comprises: A grinding motor (31) is mounted on one end of the upper side of the lifting frame (16); An inclined frame (32) is fixed to the output end of the grinding motor (31), and the other end is fixed with a grinding rod (33).

5. The X-ray diffraction sample holder for ophthalmic implant crystal form structure analysis according to claim 4, characterized in that, The cleaning unit (6) comprises: A fixed frame (61) is connected to the inner wall of the X-ray diffractometer (1), and a cleaning cylinder (62) is mounted on the end; A rotating rod (63) is slidingly connected to the inside of the cleaning cylinder (62), and an arc-shaped groove (631) is formed on the surface of the rotating rod (63); the upper end of the rotating rod (63) is connected to the other end of the lifting frame (16); A cleaning roller (64) is fixed to the lower side of the rotating rod (63); A vertical frame (65) is connected to the upper side of the fixed frame (61), and a sliding column (66) is fixed to the vertical frame (65); the end of the sliding column (66) is slidingly connected to the inside of the arc-shaped groove (631).

6. The X-ray diffraction sample holder for ophthalmic implant crystallography analysis of claim 5, wherein, The cleaning roller (64) is provided with a dust suction unit (7) for adsorbing dust in the placement groove (141), and the dust suction unit (7) comprises: A piston (71) is fixed to the surface of the rotating rod (63), and the piston (71) is slidingly connected to the inner wall of the cleaning cylinder (62); A compression spring (72) is connected between the side of the piston (71) and the inner wall of the cleaning cylinder (62); An air duct (74) is formed in the rotating rod (63) and the cleaning roller (64); A first one-way valve (73) is formed on the rotating rod (63), and the first one-way valve (73) is in communication with the end of the air duct (74); An air pipe (76) is mounted on the cleaning cylinder (62) through a second one-way valve (75).

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